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36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
"""回归测试：FLUX_TICK_REAL 等浮点环境变量非法时不得让模块导入崩溃。
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tasks.py 原来在模块导入时用裸 float() 解析 FLUX_TICK_REAL，
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FLUX_TICK_REAL=abc 会让整个演示脚本以 ValueError 崩溃；现在回退到默认值并打印警告。
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"""
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import importlib
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import os
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import sys
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sys.path.insert(0, os.path.dirname(__file__))
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import tasks
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def test_env_float_falls_back_on_malformed(monkeypatch, capsys):
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monkeypatch.setenv("FLUX_TICK_REAL", "abc")
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assert tasks._env_float("FLUX_TICK_REAL", 0.4) == 0.4
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assert "FLUX_TICK_REAL" in capsys.readouterr().out
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def test_env_float_parses_valid_value(monkeypatch):
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monkeypatch.setenv("FLUX_TICK_REAL", "0.1")
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assert tasks._env_float("FLUX_TICK_REAL", 0.4) == 0.1
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def test_env_float_default_when_unset(monkeypatch):
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monkeypatch.delenv("FLUX_TICK_REAL", raising=False)
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assert tasks._env_float("FLUX_TICK_REAL", 0.4) == 0.4
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def test_module_reload_survives_malformed_env(monkeypatch):
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"""模块级 TICK_REAL 在环境变量非法时不得抛出 ValueError。"""
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monkeypatch.setenv("FLUX_TICK_REAL", "fast")
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importlib.reload(tasks)
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assert tasks.TICK_REAL == 0.4
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